Your Trusted Ballscrew Supplier for Precision Linear Motion
HEBEI YIDI IMPORT AND EXPORT TRADING CO., LTD. – YIDI Motion delivers high-performance ball screws straight from our ISO-certified factory in Shijiazhuang, China. OEM/ODM customization, exports to 50+ countries including USA, Germany, and Japan.
Adam Li, Export Director
Procurement Risks When Sourcing Ball Screws
Procurement managers know the drill. You're under pressure to spec out ball screws for a new CNC retrofit or automation line, but one wrong supplier choice can derail timelines and budgets. Cheap imports often arrive with uneven preload, leading to backlash in high-speed ops. Suddenly, your machine's precision drops, downtime climbs, and warranty claims pile up.
We've seen it too many times in our 4+ years exporting. Buyers chasing rock-bottom prices end up with rolled ball screws pitched as "precision ground," only to find tolerances off by microns. Dynamic load ratings? Overstated. And forget lead times – those "2-week" promises stretch to months with hidden factory backlogs.
Another headache: mismatched end fittings. You order SFU or SFV series expecting standard threading, but get something proprietary that gums up integration. Or material grades like SCM415 instead of the more reliable SCM420H, cracking under repeated cycles.
- Quality fakes: Surface finishes rougher than C5 class, accelerating wear.
- Logistics snafus: Containers delayed at customs, no proper packing for sea freight.
- Compliance gaps: No CE or RoHS docs, blocking EU installs.
- No support: Suppliers ghost you post-sale on preload adjustments or nut failures.
Operations folks tell us straight: risk tolerance is low when ball screws sit at the heart of your linear motion system. One failure can idle an entire production cell. That's why smart buyers vet for proven export experience and in-house testing rigs.
At YIDI Motion, we cut through this noise. Our ballscrews handle real-world loads without the drama.
YIDI Ball Screw Solutions That Deliver
Ball screws aren't just rods with balls. They're the backbone of efficient rotary-to-linear conversion – up to 90% efficiency versus leadscrews' 20-40%. We specialize in both precision ground (C0-C5) for ultra-accurate apps and rolled (C7-C10) for cost-effective high-volume runs.
Take our standard lineup: diameters from 8mm to 80mm, lengths up to 6m custom cut. Nuts in flange (BF), block (BK), or miniature styles, with options for standard or cooled designs to beat thermal expansion in continuous ops.
What sets us apart? German-imported grinders and Japanese hobbing machines ensure pitch error under 12μm/300mm for ground series. Balls are grade 10 or better, circulated via end-return or internal designs for low noise.
Customization is our edge. OEM nut modifications? No problem. Want anti-backlash preload sets for robotics? We dial it in. Lead times average 15-25 days for standards, 35-45 for ODM prototypes – realistic, not hype.
Buyers appreciate the one-stop shop: pair ball screws with our linear guides, modules, or ball splines. Reduces sourcing hassle across your motion system.
Pro Insight: In humid USA warehouses, opt for phosphate-coated shafts. Cuts corrosion risk by half versus plain chrome.Conversion psychology here is simple: deliver parts that run longer, cost less to integrate, and back it with data. No smoke and mirrors.
Our Factory Strength & Certifications
YIDI Motion kicked off in 2020 with a focused team of 100 in Shijiazhuang. Over 30% senior techs – guys who've debugged grinders on three continents. We pulled in DMG Mori equipment from Germany for thread grinding, plus Mitsubishi wire EDM from Japan for nut races.
Production flow? Raw SCM420H bars get heat-treated to 58-62HRC, rough turned, then precision ground. Full laser marking for traceability. Each batch runs through Dm-N fatigue tests up to 200,000 rpm limits.
- ISO 9001:2015 for quality management.
- ROHS compliant materials.
- CE marking for EU machinery directive.
- In-house CMM for 3D tolerance checks.
Exports hit 50 countries: USA machine builders love our C5 ground series; Japanese OEMs spec our rolled for actuators. Annual output? Scaling past 50,000 units. Mission stays grounded: innovation through quality, not shortcuts.
Contact us at our page for factory tours or video walkthroughs.
Where Our Ball Screws Excel
CNC mills and lathes: High-speed Z-axis feeds without whip. Robotics: Joint actuators needing zero backlash. Semiconductor: Wafer stages demanding sub-micron repeatability.
We've supplied into packaging lines where 24/7 duty cycles chew through lesser screws. Medical devices too – sterile clean-room grades with PEEK nuts.
| Industry | Typical Specs | YIDI Advantage |
|---|---|---|
| CNC Machines | Dia 25-50mm, C5, 5-20 pitch | Preloaded double nuts, 1.2x load rating |
| Automation | Dia 16-32mm, C7 rolled | Low noise internal return |
| Robotics | Mini 12-20mm, C3 ground | Custom anti-backlash |
Procurement note: Match Dm-N factors to your duty cycle. Overdo it, and balls pit prematurely.
Detailed Technical Specifications
Here's a snapshot of our popular SFU1605 series – dynamic load Ca up to 6.5kN, stroke life 50km at 10m/min. Full catalog on request.
| Model | Dia x Lead (mm) | Accuracy | Ca (kN) | Weight (kg/m) |
|---|---|---|---|---|
| SFU1605 | 16x5 | C7 | 6.5 | 1.5 |
| SFU2005 | 20x5 | C5 | 9.5 | 2.2 |
| SFU2510 | 25x10 | C3 | 15.2 | 3.0 |
| SFU3220 | 32x20 | C5 | 28.4 | 5.1 |
| SFU5010 | 50x10 | C7 | 52.1 | 9.4 |
Tolerances per JIS B1192. Custom pitches? Up to 50mm leads.
Installation and Maintenance Realities
Mounting's straightforward but picky. Align shaft to 0.02mm/300mm or whip sets in. Use dial indicators on fixed/flange ends. Torque nuts per our charts – overtighten, and preload crashes.
Lube with lithium grease NLGI 2 every 100km stroke or quarterly. Watch for ball chatter; means contamination or wear.
Common pitfalls: Skimping on supports for long spans over 1m. Vibration kills life. Or ignoring axial play in couplings.
Logistics: From Factory to Your Door
Sea to USA West Coast: 25-35 days FOB Tianjin. Air for prototypes: 7-10 days DHL. We pack in plywood crates, shaft ends capped, desiccant included. MOQ 5pcs for samples, 50 for bulk.
Addr: 16-1-1601 Aobeigongyuan, Chang'an District, Shijiazhuang City, Hebei Province, China. Full docs: CO, packing list, fumigation certs.
No surprises. Track via our portal post-order.
What Buyers Are Saying
John M., Procurement Mgr, Texas CNC Shop: "Switched to YIDI C5 25x5 after local stock failed preload tests. Installed same day, backlash under 3μm. Lead time beat Taiwan quotes. Will reorder."
Emily R., Automation Engineer, Ontario: "OEM nut mod for our picker arm. Factory video verified tolerances. Shipped air, arrived perfect. Efficiency up, no tuning needed."
Mike T., Ops Director, California Robotics: "Rolled series for volume build. Price per meter 20% under competitors, quality matched. Logistics smooth – full container to LA."
Sarah K., Importer, Florida: "First order samples free-ish with bulk commit. ISO docs closed the deal for our EU resell. Responsive team."
Frequently Asked Questions
What's the difference between ground and rolled ball screws?
Ground: Tighter tolerances (C0-C5), higher price, for precision. Rolled: C7+, economical for general motion. We do both.
OEM/ODM minimum order?
Samples from 1pc. Production 50pcs. Custom tooling extra for low volume.
Lead times to USA?
15-25 days sea standards, 7 days air express. Rush options +20%.
Warranty?
12 months or 3000km stroke, whichever first. Defective returns prepaid.
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Can you match competitor specs?
Yes – send drawings/PDFs. Reverse engineering for nuts too.
Ready to Spec Your Ball Screws?
Talk engineer-to-engineer. Request specs, samples, or factory pricing.
Or visit Contact Us for full details. Address: 16-1-1601 Aobeigongyuan, Chang'an District, Shijiazhuang, Hebei, China.
© 2026 HEBEI YIDI IMPORT AND EXPORT TRADING CO.,LTD. All rights reserved. | YIDI Motion – Precision Linear Motion Specialists.
